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hook: add spi init hooks

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Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Thomas Ingleby
2014-07-31 13:33:45 +01:00
committed by Brendan Le Foll
parent dd9129d411
commit fb1034b2b0
2 changed files with 16 additions and 0 deletions
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3
include/mraa_adv_func.h
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@@ -57,4 +57,7 @@ typedef struct {
mraa_result_t (*pwm_init_pre) (int pin); mraa_result_t (*pwm_init_pre) (int pin);
mraa_result_t (*pwm_init_post) (mraa_pwm_context pwm); mraa_result_t (*pwm_init_post) (mraa_pwm_context pwm);
mraa_result_t (*pwm_period_replace) (mraa_pwm_context dev, int period); mraa_result_t (*pwm_period_replace) (mraa_pwm_context dev, int period);
mraa_result_t (*spi_init_pre) (int bus);
mraa_result_t (*spi_init_post) (mraa_spi_context spi);
} mraa_adv_func_t; } mraa_adv_func_t;

13
src/spi/spi.c
View File

@@ -52,6 +52,11 @@ struct _spi {
mraa_spi_context mraa_spi_context
mraa_spi_init(int bus) mraa_spi_init(int bus)
{ {
if (advance_func->spi_init_pre != NULL) {
if (advance_func->spi_init_pre(bus) != MRAA_SUCCESS)
return NULL;
}
mraa_spi_bus_t *spi = mraa_setup_spi(bus); mraa_spi_bus_t *spi = mraa_setup_spi(bus);
if(bus < 0) { if(bus < 0) {
fprintf(stderr, "Failed. SPI platform Error\n"); fprintf(stderr, "Failed. SPI platform Error\n");
@@ -74,6 +79,14 @@ mraa_spi_init(int bus)
dev->lsb = 0; dev->lsb = 0;
dev->mode = 0; dev->mode = 0;
if (advance_func->spi_init_post != NULL) {
mraa_result_t ret = advance_func->spi_init_post(dev);
if (ret != MRAA_SUCCESS) {
free(dev);
return NULL;
}
}
return dev; return dev;
} }